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Finding the Fourth Proportional to 144,382.11, 216,671.58 and 86,727.93

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Solution

The fourth proportional to 144,382.11, 216,671.58 and 86,727.93 is: 130,151.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,382.11 : 216,671.58 = 86,727.93 : x
  2. Step 2: Convert to fraction form
    144,382.11/216,671.58 = 86,727.93/x
  3. Step 3: Cross multiply
    144,382.11x = 216,671.58 × 86,727.93
  4. Step 4: Simplify right side
    144,382.11x = 18,791,477,623.23
  5. Step 5: Solve for x
    x = 18,791,477,623.23/144,382.11
  6. Step 6: Final answer
    x = 130,151.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.